Home / 13,338.56-18,397.68-10,189.28

Finding the Fourth Proportional to 13,338.56, 18,397.68 and 10,189.28

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Solution

The fourth proportional to 13,338.56, 18,397.68 and 10,189.28 is: 14,053.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,338.56 : 18,397.68 = 10,189.28 : x
  2. Step 2: Convert to fraction form
    13,338.56/18,397.68 = 10,189.28/x
  3. Step 3: Cross multiply
    13,338.56x = 18,397.68 × 10,189.28
  4. Step 4: Simplify right side
    13,338.56x = 187,459,112.87
  5. Step 5: Solve for x
    x = 187,459,112.87/13,338.56
  6. Step 6: Final answer
    x = 14,053.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.